package com.atguigu.realtime.gmallsugar.service;

import com.atguigu.realtime.gmallsugar.bean.Visitor;

import java.util.List;

/**
 * @Author lzc
 * @Date 2022/4/26 14:37
 */
public interface VisitorService {
    
    
    List<Visitor> visitor(int date);
    
    
}
